How to use:
- Connect the USB cable to the computer or 5V charger switch interface, coasters begin to generate heat.
- The need for thermal insulation on the silica glass coasters, then it can play the role of insulation (please don’t use the recessed bottom cup, glass Cup is best)
- Please do not use this insulation Cup for outside functions.
- Please Unplug the USB cable when don’t use, to extend the life of the product.
- It is only used to keep your tea or coffe warm,but not for heating.
- 1 x USB Cup Warmer
- Do not use on inflamable materials e.g. on cloth or paper
- Do not touch with bare hands while it is really warm, let it cool off first
- When not in use, keep the cup warmer unplugged
- Keep out of reach of children